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Ultra-high imaging degree optical recording media

An optical recording and media technology, applied to optical record carriers, recording layers, recording/reproducing by optical methods, etc., can solve the problems of poor signal quality, large bubble-like marks, uneven shape of bubble-like marks, etc. Reliable effect

Inactive Publication Date: 2008-07-02
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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Problems solved by technology

However, if a laser beam is irradiated on an existing optical recording medium including the above-mentioned constituent substances, a large bubble-shaped mark will be formed.
At the same time, the shape of the above-mentioned bubble-like markers is not uniform, and the signal quality (jitter) is not good

Method used

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  • Ultra-high imaging degree optical recording media
  • Ultra-high imaging degree optical recording media
  • Ultra-high imaging degree optical recording media

Examples

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Embodiment Construction

[0026] refer to figure 2 , an embodiment of the super high-resolution optical recording medium of the present invention will be described below. One embodiment of the ultra-high-resolution optical recording medium of the present invention is a disc with an outer diameter of about 120 mm and a thickness of about 1.2 mm. On the substrate 10, a reflective layer 20, a dielectric layer 30a, a recording layer 50, The dielectric layer 30 b , the reading layer 60 , the dielectric layer 30 c and the light-transmitting layer 40 . The ultra-high resolution optical recording medium of the present invention is preferably a storage-once type (WORM) optical recording medium. The wavelength of the laser beam used in the ultra-high-resolution optical recording medium is between 380-450nm, and it is best to use a laser beam (laser beam) of about 405nm to irradiate the recording layer from the surface of the light-transmitting layer, that is, from the light incident surface. Data (data) stora...

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Abstract

The invention relates to a light recording medium with an ultra-high displaying degree, in particular to a light recording medium with an ultra-high displaying degree, which generates mark under a diffraction limit of light and performs storing and reading by irradiating the mark by light. The invention is characterized in that the light recording medium comprises a base board, a recording layer and a reading layer, wherein the recording layer comprises the following two layers: a layer which is made of silicon element and a layer formed by more than one elements selected from Ag, Au, W, Mn, Pt, Ti, Zr, B, Cr, Fe, Co, Ni, Pd, Sb, Ta, Al, ln, Cu, Sn, Te, Zn and Bi. The reading layer is made of more than one elements selected from Ge, Sb and Te. The light recording medium with ultra-high displaying degree provided by the invention can record the mark under the diffraction limit on the light recording medium with ultra-high displaying degree, and read the mark such that better signal quality is guaranteed during reading.

Description

technical field [0001] The present invention relates to an ultra-high-resolution optical recording medium, in particular to an ultra-high-resolution optical recording medium which generates marks below the diffraction limit of light and irradiates the marks with light for storage and reading. Background technique [0002] Representative optical recording media that have been developed or produced include DVD (digital versatile disc; hereinafter referred to as DVD) using red laser light for recording and reading, and BD (Blu-raydisc. hereinafter referred to as BD) using blue laser light. The storage capacity of the above-mentioned optical recording medium is 4.7 gigabytes (Giga byte; hereinafter referred to as GB) at the DVD level, and about 25 GB at the BD level recently put on the market. It is estimated that after 2005, the size of a CD as an optical recording medium can reach more than 100GB. After 2010, the size of a CD can reach more than Tera byte (TB). However, in o...

Claims

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Application Information

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IPC IPC(8): G11B7/243G11B7/242G11B7/252G11B7/241G11B7/2403G11B7/2433
Inventor 金正宏李昌浩郭金哲
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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